A139777 - OEIS

This site is supported by donations to The OEIS Foundation.

A139777

Average of twin primes p4 such that p1^2+p2^3=p3 and p1^3+p2^2=p4, p3 and p4 are average of twin primes. p1 and p2 consecutive primes, p1 < p2.

13008, 9268057799643918 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	MATHEMATICA	`a={}; Do[p1=Prime[n]; p2=Prime[n+1]; p3=p1^2+p2^3; p4=p1^3+p2^2; If[PrimeQ[p3-1]&&PrimeQ[p3+1]&&PrimeQ[p4-1]&&PrimeQ[p4+1], AppendTo[a, p4]], {n, 13^5}]; Print[a];`
	CROSSREFS	`Sequence in context: A190947 A203910 A138762 * A015327 A079230 A165679` `Adjacent sequences: A139774 A139775 A139776 * A139778 A139779 A139780`
	KEYWORD	`nonn,bref`
	AUTHOR	`Vladimir Orlovsky (4vladimir(AT)gmail.com), May 16 2008`

Content is available under The OEIS End-User License Agreement .

Last modified February 15 18:22 EST 2012. Contains 205835 sequences.